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US 8,101,298 B2Granted
Method of fabricating fibres composed of silicon or a silicon-based material and their use in lithium rechargeable batteries
AssigneeNexeon Limited
InventorsMino Green, Feng-Ming Liu
Life of this patent
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Abstract
A method of fabricating fibres of silicon or silicon-based material comprises the steps of etching pillars on a substrate and detaching them. A battery anode can then be created by using the fibres as the active material in a composite anode electrode.
Claims20
A method of creating a cell electrode for an electrochemical cell, the method comprising:
- etching a silicon or silicon-based substrate to form fibres;
- detaching the fibres from the substrate;
- depositing a slurry containing a plurality of the fibres to form a layer of fibres;
- wherein at least some of the fibres cross over to provide intersections.
1 more element
A method of creating a cell electrode for a battery, the method comprising:
- etching a silicon or silicon-based substrate, comprising n-type or p-type silicon, to form fibres;
- detaching the fibres from the substrate;
- and
- forming a layer of fibres in which the fibres cross over each other to provide multiple intersections.
1 more element
A method of fabricating an electrode for an electrochemical cell, the method comprising the steps of:
- etching a silicon substrate or a silicon-based substrate to make pillars;
- detaching pillars from the substrate to give electrode fibres of silicon or a silicon-based material;
- and
- forming an electrically interconnected mass of electrode fibres, wherein the electrode fibres form an electrochemically active material of the electrode, and the fibres comprise n-type or p-type silicon.
1 more element
Dependencies are inferred from the claim text.